Before you install the driver you have to remove any installed driver for RTL8111/8168. Goto /S/L/E and delete the old driver (Lnx2mac, AppleRealtekRTL8169, etc.). Recreate the kernel cache. Open System Preferences and delete the corresponding network interface, e. Whenever manufacturers release new hardware, they will also launch compatible drivers to allow hardware to function properly. Over a series of days or weeks, the manufacturer will likely continue to release updated drivers to fix new and unforseen errors.
Overview:
Due to the shortcomings of the current Realtek 81xx Hackintosh drivers (such as lack of or limited support of 8111E, 32/64-bit, sleep issues), I endeavored to port the Linux RTL81xx driver to Mac OS X. Porting a driver is never a trivial task, but this one brought two interesting challenges:
Lack of documentation (Realtek provides it only under NDA)
and.. I didn't have access to a board with the 8111E
I started this port based on Chuck Fry's 'Chucko R1000SL', and merging in support for new chips, from the Realtek Official Linux drivers (released August 31, 2010). RealtekRTL81xx.kext is the result of this work, and it fully supports the RTL8168/RTL8111 family of NICs.
Features:
Some highlights of the issues it fixes, and features provided are:
Newer (SandyBridge) RTL8111E, RTL8111E-VL, and RTL8111F (Since v0.0.90)
Full 32-bit and 64-bit support
Fixed Sleep/Wake issues
Full support of WakeOnLAN (Since v0.0.90)
Full support of WakeOnDemand (Since v0.0.90)
Improved Auto-Negotiation
Implemented negotiated-media reporting
Improved stability
Improved performance (see image below)
Numerous unreported/minor bug fixes
Mac OS X Snow Leopard and Lion support
Convenient Installer Package
Over 80 members of the tonymacx86 Forum participated in 6 restricted beta cycles, testing it on several platforms, P55, H55, X58. I'd like to specially thank MacMan for his cooperation and invaluable help in alpha testing this (for several days, I would email him the driver, and he would reply with logs) !
Support my work:
As you probably understand, a lot of time and effort was (and is) spent on developing and maintaining this project. I plan to keep this Driver free and public for anyone in the Mac OS X community. If you like it, please consider helping.
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Making a donation is not required, but will be greatly appreciated !
Download Links:
Please Do not redistribute this, but instead link to this page.
Current Stable Release: N/A
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Current BETA Release: Previous BETA Releases:
Installation instructions:
Download and execute the Installer .pkg file
Follow the instructions on screen
Note that if you have installed conflicting kexts, these will be moved to a folder on your desktop.
Troubleshooting:
Based on the number of problem reports I get, I created the following page: Reviving Dead Ethernet Ports
Reporting Problems:
The guys at the tonymacx86 Forum created a subforum just for this! Thanks guys, you rock ! Report all issues there ! Other comments and feedback, can be posted here. Enjoy, Lnx2Mac
There's currently an issue with Blogger not showing/accepting comments on Static Pages. In the meantime, please post your comments in the Lnx2Mac Releases new RTL81xx Beta blog post. Update: As of 19-Oct-2011 4:00AM GMT, it seems this blogger issue has been fixed
OS X open source driver for the Realtek RTL8111/8168 family
*** Please note that this driver isn't maintained by Realtek! ***
Due to the lack of an OS X driver that makes use of the advanced features of the Realtek RTL81111/8168 series I started a new project with the aim to create a state of the art driver that gets the most out of those NICs which can be found on virtually any cheap board on the market today. Based on Realtek's Linux driver (version 8.035.0) I have written a driver that is optimized for performance while making efficient use of system resources and keeping the CPU usage down under heavy load.
Key Features of the Driver
Supports Realtek RTL8111/8168 B/C/D/E/F/G/H found on recent boards.
Support for multisegment packets relieving the network stack of unnecessary copy operations when assembling packets for transmission.
No-copy receive and transmit. Only small packets are copied on reception because creating a copy is more efficient than allocating a new buffer.TCP, UDP and IPv4 checksum offload (receive and transmit).
TCP segmentation offload over IPv4 and IPv6.
Support for TCP/IPv6 and UDP/IPv6 checksum offload.
Fully optimized for Mountain Lion (64bit architecture) but should work with Lion too. Snow Leopard requies some changes.
Supports Wake on LAN.
Support for Energy Efficient Ethernet (EEE) which can be disabled by setting enableEEE to NO in the drivers Info.plist without rebuild. The default is YES.
The driver is published under GPLv2.
Limitations
As checksum offload doesn't work with jumbo frames they are currently unsupported and will probably never be.
No support for 32bit kernels.
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Installation
Before you install the driver you have to remove any installed driver for RTL8111/8168.
Goto /S/L/E and delete the old driver (Lnx2mac, AppleRealtekRTL8169, etc.).
Recreate the kernel cache.
Open System Preferences and delete the corresponding network interface, e. g. en0. If you forget this step you might experience strange problems with certain Apple domains, iTunes and iCloud later.
Reboot.
Install the new driver and recreate the kernel cache.
Reboot
Open System Preferences again, select Network and check if the new network interface has been created automatically or create it manually now.
Configure the interface.
Current status
The driver has been successfully tested under 10.8.2 - 10.12.6 with serveral versions of the RTL8111 and is known to work stable on these devices but you'll have to consider that there are 25 different revisions of the RTL8111. The RTL8111B/8168B chips have been reported to work since version 1.0.2 too.
Asus pce-ac66 drivers for mac. Then you can download and update drivers automatic.
Changelog
Version 2.2.2 (2018-01-21)
Force ASPM state to disabled/enabled according to the config parameter setting.
Requires 10.12 or newer.
Version 2.2.1 (2016-03-12):
Updated underlying linux sources from Realtek to 8.041.00.
Added support for RTL8111H.
Implemented Appleās polled receive driver model (RXPOLL).
Requires 10.11 or newer. Support for older versions of OS X has been dropped.
Version 2.2.0d0 (2016-02-06):
Improved media selection and reporting (flow control and EEE).
Updated Linux sources to 8.041.000.
Version 2.0.0 (2015-07-14):
Replaced Apple headers with those from IONetworkingFamily-85.2 to fix compatibility issues with Mountain Lion.
Version 2.0.0 (2015-06-21):
Uses Apple's private driver interface introduced with 10.8.
Supports packet scheduling with QFQ.
Please note that 2.0.0 is identical to 2.0.0d2. Only the version number has changed.
Version 1.2.3 (2014-08-23):
Reworked TSO4 and added support for TSO6.
Version 1.2.2 (2014-08-14):
Added an option to disable ASPM (default disabled) as it seems to result in unstable operation of some chipsets.
Resolved a problem with Link Aggregation after reboot.
Added a workaround for the Multicast filter bug of chipset 17 (RTL8111F) which prevented Bonjour from working properly.
Version 1.0.1 (2013-03-31):
Improved behavior when rx checksum offload isn't working properly.
Adds the chipset's model name to IORegistry so that it will show up in System Profiler.
Version 1.0.2 (2013-04-22):
Added support for rx checksum offload of TCP and UDP over IPv6.
Version 1.0.3 (2013-04-25):
The issue after a reboot from Windows has been eliminated.
Version 1.0.4 (2013-05-04)
Moved setLinkStatus(kIONetworkLinkValid) from start() to enable(). Cleaned up getDescCommand().
Version 1.1.0 (2013-06-08):
Support for TCP/IPv6 and UDP/IPv6 checksum offload added (can be disabled in Info.plist).
Maximum size of the scatter-gather-list has been increased from 24 to 40 segments to resolve performance issues with TSO4 when offloading large packets which are highly fragmented.
TSO4 can be disabled in Info.plist without rebuild.
Statistics gathering has been improved to deliver more detailed information (resource shortages, transmitter resets, transmitter interrupt count).
The interrupt mitigate settings has been changed to improve performance with SMB and to reduce CPU load.
Configuration option added to allow for user defined interrupt mitigate settings without rebuild (see above).
Version 1.1.1 (2013-06-29):
Remove ethernet CRC from received packets to fix rx checksum offload.
Version 1.1.2 (2013-08-03):
Improved SMB performance in certain configurations.
Faster browsing of large shares.
Version 1.1.3 (2013-11-29):
Improved transmit queue handling made it possible to reduce CPU load during packet transmission.
Improved deadlock detection logic in order to avoid false positives due to lost interrupts.
Version 1.2.0 (2014-04-23):
Updated underlying linux sources from Realtek to 8.037.00. Improved interrupt mitigate to use a less aggressive value for 10/100 MBit connections.
Troubleshooting
A yellow exclamation point (!) under Device Manager usually means that the device is not receiving enough power. Look for the card reader under Devices with removable storage. SOLUTION 3 - Try other USB ports. If the reader is not receiving ample amount of power from the USB port, it may not function properly. Sim card reader for mac. Double-click My Computer.
Make sure you have followed the installation instructions especially when you have issues with certain domains while the others are working fine.
Use the debug version to collect log data when trying to track down problems. The kernel log messages can be found in /var/log/system.log. For Sierra and above use 'log show --predicate 'processID 0' --debug' in order to retrieve kernel logs. Include the log data when asking for support or giving feedback. I'm an engineer, not a clairvoyant.
Check your BIOS settings. You might want to disable Network Boot and the UEFI Network Stack as these can interfere with the driver.
Double check that you have removed any other Realtek kext from your system because they could prevent the driver from working properly.
Verify your bootloader configuration, in particular the kernel flags. Avoid using npci=0x2000 or npci=0x3000.
In Terminal run netstat -s in order to display network statistics. Carefully examine the data for any unusual activity like a high number of packets with bad IP header checksums, etc.
In case auto-configuration of the link layer connection doesn't work it might be necessary to select the medium manually in System Preferences under Network for the interface.
Use Wireshark to create a packet dump in order to collect diagnostic information.
Keep in mind that there are many manufacturers of network equipment. Although Ethernet is an IEEE standard different implementations may show different behavior causing incompatibilities. In case you are having trouble try a different switch or a different cable.
FAQ
How can I retrieve the kernel logs?
In Terminal type 'grep kernel /var/log/system.log'.
I want to disable Energy Efficient Ethernet (EEE) but I don't know how?
Take a look at the driver's Info.plist file. There you will find an option named enableEEE. Change its value from to . Don't forget to recreate the kernel cache after changing the value.
WoL from S5 doesn't work with this driver but under Windows it's working. Is this a driver bug?
No it isn't, the driver is working as it should because OS X doesn't support WoL from S5.
Known Issues
There are still performance problems with regard to SMB in certain configurations. My tests indicate that Apple's Broadcom driver shows the same behavior with those configurations. Obviously it's a more general problem that is not limited to my driver.
WoL refuses to work on some machines.
Old systems with 3 and 4 series chipsets exhibit performance issues in recent versions of macOS because there is no optimized power management for these systems in macOS anymore as Apple dropped support for the underlying hardware a long time ago. In case you are affected, please upgrade your hardware or find an alternative solution because I have no plans for a workaround. Sorry, but I don't think that it's worth the effort.
Building from Source
I'm using XCode 8.3.3 for development. You can get a free copy of XCode after becoming a member of the Apple developer program. The free membership is sufficient in order to get access to development tools and documentation.
Support
Please refer to the driver's thread on insanelymac.com
in case you have further questions, need support or want to submit a problem report. As of now, support requests here on Github will be ignored!